Ep. 9: Chika and Haruta investigate the Fujigasaki High School brass band advisor's suspension and the Asmodeus peeping Tom mystery.
Aired on March 3, 2016

9
Mr. Kusakabe collapses due to exhaustion. In response to this incident, Chika and Haruta decide to assist him by looking into the underlying issues at Fujigasaki High School. Their investigation focuses on two specific matters: the suspension of the brass band club advisor and the identity of the peeping Tom referred to as Asmodeus. The pair works to uncover the truth behind these events to support their colleague.
Episodes
- Ep. 5 · Akari Goto seeks Haruta's help to solve her grandfather's overseas mystery involving three paintings and a unique color.
- Ep. 6 · Brass band club investigates mysterious trespasser in music room during spring break
- Ep. 7 · Chika and Haruta pursue the geology club leader to secure a budget increase for the band club.
- Ep. 8 · Naoko seeks Chika's help while her aunt consults the First Love Sommelier
- Ep. 9 · Chika and Haruta investigate the Fujigasaki High School brass band advisor's suspension and the Asmodeus peeping Tom mystery.
- Ep. 10 · The district contest arrives as Haruta vanishes and Chika encounters a writer probing Kusakabe's history.
- Ep. 11 · Makoto holds the key to her grandfather's piano secret
- Ep. 12 · Kusakabe Receives Hamamatsu Orchestra Offer While Haruta and Chika Investigate His Past